This article aims to know the nature and prevalence of the staff maltreatment of students, according sex and educational level (elementary, secondary) of students. The study was conducted in Quebec with 54 152 students of primary and secondary school using self-report questionnaire. The results indicate that the abuse (i.e., shouting, humiliating, scornful glances) are experienced in similar proportions by students, regardless of sex or educational level. Conclusions suggest addressing the phenomenon in its whole and proposes to sensitize adults to counterproductive effects of such behavior.